论文部分内容阅读
一、前言现代材料科学技术的进展很快。机械制造业在解决高效率、低成本及节能等技术问题中,也必须依靠钢铁工业技术进步开发各种各样高质量高性能的新钢种,以满足各类机械对结构材料和功能材料的需求。近年,日本钢铁企业适应能源紧张的形势,以高效率、节能和节约资源为目标,大力研究和开发符合各行各业需要的新钢种和特殊钢品种,对结构钢的研究更为突出。五十年代,日本引进了各项炼钢生产新技术,为冶炼特殊钢创造了条件。钢液的二次精炼处理技术,经长期生产实践,逐步形
First, the foreword The modern material science and technology progress very fast. Mechanical manufacturing industry to solve the high efficiency, low cost and energy saving and other technical issues, but also must rely on technological progress in the steel industry to develop a variety of high quality and high performance of new steel to meet the various types of mechanical and structural materials and functional materials demand. In recent years, Japanese steel companies have adapted to the situation of energy shortage. With the goal of high efficiency, energy conservation and resource conservation, the Japanese steel industry has made great efforts to research and develop new types of steel and special steel that meet the needs of all walks of life. Research on structural steel is even more prominent. In the 1950s, Japan introduced various new technologies for steelmaking and created the conditions for the smelting of special steel. Secondary refining liquid steel technology, long-term production practices, and gradually shape